Here's a few hands I saw the past couple days how people played small to medium PP really bad and why it just ain't worth playing at all. (stack sizes in bold show who had the PP)

Poker Stars
No Limit Holdem Ring game
Blinds: $0.01/$0.02
8 players
Converter

Stack sizes:
UTG: $5.25
UTG+1: $1.87
MP1: $4.63
MP2: $1.62
Hero: $8.79
Button: $1.37
SB: $1.87
BB: $1.08

Pre-flop: (8 players) Hero is CO with A K
UTG calls $0.02, UTG+1 calls $0.02, MP1 calls $0.02, MP2 folds, Hero raises to $0.14, 3 folds, UTG calls $0.12, 2 folds.

Flop: J K J ($0.35, 2 players)
UTG bets $0.1, Hero raises to $0.5, UTG calls $0.4.

Turn: T ($1.35, 2 players)
UTG checks, Hero bets $1.25, UTG calls $1.25.

River: A ($3.85, 2 players)
UTG checks, Hero bets $4, UTG calls all-in $3.36.
Uncalled bets: $0.64 returned to Hero.

Results:
Final pot: $10.57
Hero showed Ah Kd
UTG showed 5h 5d

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Poker Stars
No Limit Holdem Ring game
Blinds: $0.01/$0.02
9 players
Converter

Stack sizes:
UTG: $5.10
UTG+1: $1.78
MP1: $5.04
MP2: $0.92
MP3: $2.10
CO: $5.37
Button: $3.98
SB: $1.14
Hero: $2.52

Pre-flop: (9 players) Hero is BB with 5 5
UTG folds, UTG+1 calls $0.02, 4 folds, Button calls $0.02, SB calls $0.01, Hero checks.

Flop: K T Q ($0.08, 4 players)
SB checks, Hero bets $0.04, UTG+1 calls $0.04, Button calls $0.04, SB folds.

Turn: 4 ($0.2, 3 players)
Hero bets $0.06, UTG+1 calls $0.06, Button folds.

River: A ($0.32, 2 players)
Hero checks, UTG+1 bets $0.1, Hero calls $0.1.

Results:
Final pot: $0.52
UTG+1 showed Jh Kc
Hero mucks 5c 5s

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Poker Stars
No Limit Holdem Ring game
Blinds: $0.01/$0.02
9 players
Converter

Stack sizes:
UTG: $4.64
UTG+1: $4.97
MP1: $2.17
MP2: $3.75
Hero: $2.65
CO: $2.87
Button: $1.79
SB: $5.42
BB: $1.51

Pre-flop: (9 players) Hero is MP3 with K 6
UTG folds, UTG+1 calls $0.02, MP1 folds, MP2 raises to $0.08, Hero folds, 3 folds, BB calls $0.06, UTG+1 calls $0.06.

Flop: 4 7 3 ($0.25, 3 players)
BB bets $0.08, UTG+1 calls $0.08, MP2 raises to $0.16, BB folds, UTG+1 calls $0.08.

Turn: T ($0.65, 2 players)
UTG+1 checks, MP2 bets $0.5, UTG+1 calls $0.5.

River: A ($1.65, 2 players)
UTG+1 bets $1, MP2 calls $1.

Results:
Final pot: $3.65
UTG+1 showed Th Jh
MP2 mucks 7c 7h

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Poker Stars
No Limit Holdem Ring game
Blinds: $0.01/$0.02
8 players
Converter

Stack sizes:
UTG: $0.57
UTG+1: $0.99
MP1: $1
MP2: $2.01
CO: $1.87
MP1: $2.17
Hero: $1.97
SB: $2.10
BB: $1.16

Pre-flop: (8 players) Hero is Button with 6 7
UTG calls $0.02, UTG+1 calls $0.02, MP1 (poster) checks, MP2 calls $0.02, CO calls $0.02, Hero folds, SB calls $0.01, BB (poster) checks.

Flop: T 4 Q ($0.14, 7 players)
SB bets $0.02, BB raises to $0.1, UTG raises all-in $0.55, 3 folds, CO calls $0.55, SB calls $0.53, BB folds.

Turn: 5 ($1.89, 2 players + 1 all-in - Main pot: $1.89)
SB checks, CO checks.

River: K ($1.89, 2 players + 1 all-in - Main pot: $1.89)
SB checks, CO checks.

Results:
Final pot: $1.89
SB showed Qc 8c
UTG mucks 3c 3h
CO mucks Qs 3s

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PROOF THAT PLAYING SMALL TO LOW PPs AREN'T JUST WORTH IT.